Women clothing

It is not an evedince of hijab but it is part of the conditions. We should not describe specific individulas of being punished through this hadeeth. However, we say that those who fit this hadeeth will be punished by this punishment.

This is not correct.

Yes it is.

Yes she can as long men will not smell it.

This is permissible if it is to the best of your knowledge that this is only going to be seen by the husband and her Mahram only If you know that non Mahrams will see it, it is not permissible for you to do that or contribute in it. And also it is important that […]

If they know that it is not covered, their prayer is invalid.

There isn’t any specific length. Most likely it should be below the ears. It must not be imitating the non Muslims nor the hair of males.

I believe that the face and hands should be covered in front of non-mahram men.

This is permissible providing that it is not hair and it doesn’t look like hair and people can identify it to be threads.

Yes.